Spatial coherence of exciton-polaritoniс Bose‒Einstein condensates
- Authors: Kuznetsova N.V.1, Makarov D.V.1, Asriyan N.A.2, Elistratov A.A.2, Lozovik Y.E.3,4
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Affiliations:
- Ilyichev Pacific Oceanological Institute of the Far East Branch of the Russian Academy of Sciences
- Dukhov Research Institute of Automatics
- Institute of Spectroscopy of the Russian Academy of Sciences
- Higher School of Economics
- Issue: Vol 88, No 6 (2024)
- Pages: 889-895
- Section: Quantum Optics and Coherent Spectroscopy
- URL: https://journal-vniispk.ru/0367-6765/article/view/276167
- DOI: https://doi.org/10.31857/S0367676524060074
- EDN: https://elibrary.ru/PHGQXF
- ID: 276167
Cite item
Abstract
Dynamics of exciton-polariton Bose‒Einstein condensate in an optical microcavity is considered. A novel version of stochastic Gross‒Pitaevsky equation for description of condensate evolution under non-Markovian interaction with environment is proposed. Using the proposed version, analysis of condensate dynamics for various temperatures is carried out. The phase transition from a homogeneous to fragmented condensate state near temperature of 15 K is found. This phase transition is accompanied by drop of condensate density and decrease of correlation length. It is found that correlation length oscillates with time for the temperature of 10 K. The results obtained indicate the necessity to take into account non-Markovianity of condensate interaction with the excitonic reservoir.
About the authors
N. V. Kuznetsova
Ilyichev Pacific Oceanological Institute of the Far East Branch of the Russian Academy of Sciences
Email: makarov@poi.dvo.ru
Russian Federation, Vladivostok
D. V. Makarov
Ilyichev Pacific Oceanological Institute of the Far East Branch of the Russian Academy of Sciences
Author for correspondence.
Email: makarov@poi.dvo.ru
Russian Federation, Vladivostok
N. A. Asriyan
Dukhov Research Institute of Automatics
Email: makarov@poi.dvo.ru
Russian Federation, Moscow
A. A. Elistratov
Dukhov Research Institute of Automatics
Email: makarov@poi.dvo.ru
Russian Federation, Moscow
Yu. E. Lozovik
Institute of Spectroscopy of the Russian Academy of Sciences; Higher School of Economics
Email: makarov@poi.dvo.ru
Russian Federation, Moscow; Moscow
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